Increase - How long each line lengthens by after a turn. Degrees - The degrees you put in is the amount the angle changes. eg: If you put in 20 degrees the inside angle will be 160 degrees. Just make loads of different patterns. Some patterns(i is Increase and d is degrees) > i - 3, d - 135 > i - 1, d - 145 > i - 1 to 3, d - 160 > i - 1, d - 45
This is for a scout badge i'm doing. Thanks to RaspberryPi